Commitments - Schedule of Future Minimum Lease Payments Under Operating Leases, Net of Amount to be Received Under Sub Leases (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Commitments [Line Items]
2013	$ 3,340
2014	2,992
2015	2,816
2016	2,677
2017	2,620
Thereafter	2,624
Total	$ 17,069

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For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due net of amount received under sublease within the fifth year of the balance sheet date relating to leases defined as operating.

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No definition available.

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due net of amount received under sublease within the fourth year of the balance sheet date relating to leases defined as operating.

+ References

No definition available.

+ Details

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due net of amount received under sublease within the third year of the balance sheet date relating to leases defined as operating.

+ References

No definition available.

+ Details

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due net of amount received under sublease within the second year of the balance sheet date relating to leases defined as operating.

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No definition available.

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- Definition

The total of future contractually required payments on leases defined as operating net of amount received under sublease.

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No definition available.

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due net of amount received under sublease within one year of the balance sheet date relating to leases defined as operating.

+ References

No definition available.

+ Details

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due net of amount received under sublease after the fifth year from the balance sheet date on leases defined as operating.

+ References

No definition available.

+ Details

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